A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses stemming special for medium-sized blast furnace iron making. The stemming is characterized by being prepared from, by weight, 15-20 parts of chromium nitride with granularity of 1-3 mm, 5-8 parts of Theron with granularity of 0-1 mm, 10-15 parts of sericite with granularity of 0-1 mm, 8-15 parts of magnesium oxide iron with granularity of 0-0.5 mm, 8-13 parts of partial clay powder, 3-7 parts of cobaltous oxide alumina, 5-10 parts of cutting powder, 7-25 parts of crystalline graphite powder, 5-10 parts of composite powdered carbon, 0-1 part of strontium carbonate and 1-2 parts of medium-temperature asphalt powder. The aperture of an iron outlet can be kept stable and unchanged and iron discharge can be kept stable through the stemming; in addition, in the long-term storage process, the use performance and operation performance of the stemming are not decreased.
The invention discloses stemming special for medium-sized blast furnace iron making. The stemming is characterized by being prepared from, by weight, 15-20 parts of chromium nitride with granularity of 1-3 mm, 5-8 parts of Theron with granularity of 0-1 mm, 10-15 parts of sericite with granularity of 0-1 mm, 8-15 parts of magnesium oxide iron with granularity of 0-0.5 mm, 8-13 parts of partial clay powder, 3-7 parts of cobaltous oxide alumina, 5-10 parts of cutting powder, 7-25 parts of crystalline graphite powder, 5-10 parts of composite powdered carbon, 0-1 part of strontium carbonate and 1-2 parts of medium-temperature asphalt powder. The aperture of an iron outlet can be kept stable and unchanged and iron discharge can be kept stable through the stemming; in addition, in the long-term storage process, the use performance and operation performance of the stemming are not decreased.
Stemming
SHAN GUOQIANG (author)
2016-02-17
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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Bonding agent, stemming including bonding agent and preparation method of stemming
| European Patent Office | 2015